<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
       div{
           width: 400px;
           height: 200px;
           border:1px red solid;
           position: absolute;
           left:100px;
           top:100px;
       }
       

    </style>

</head>
<body>
        <div></div>
     
</body>
</html>